Driver-adjusting means for fastening-inserting machines



June 6, J. DURAN DRIVER-ADJUSTING MEANS FOR FASTENING-INSERTING MACHINESFiled July 7, 1958 64 86 74 I[[ 43 40 //\/l/EN ram 56 fl M Y betweenPatented June 6, 1939 PATENT GFFlCE DRIVER-ADJUSTTNG MEANS Fort FASTEN-ING-INSERTING MACHINES John A. Duran, -Beverly, Mass assignor to UnitedShoe Machinery Corporation, Paterson, N. J., a corporation of New JerseyApplication July 7, 1938,'Serial No. 217,961

12 Claims.

In machines for'inserting fastenings; as those by which nails aredriven' forattaching heels or heel-portions to shoes-the extent to'which the drivers insert the nails is important and may call forvariationas thech'aracterof the work changes. For example, in attachingrubber'lifts or whole helsfthe heads of the nails should reach pointsinthe workwhich bear a definite relation tothe washers or otherreinforcingmeans molded in the rubber. I'f the nail-heads do not arrive at thereinforcement, the attach- "m'ent will be insecure. If they are driventoo deeplywith respect to'the washers,'the heel will be distorted. Ifthe reinforcement is in the form of a'sheet of fabric, the heads maypass through it, and its effect be lost. Since the'distance betweenthetread surfaces of the'heels and their reinforcements differ fordifferent makes and sizesfthe operator of the-heel-attaching machine iscalled upon to adjust the drivers upon their actuating member, so theextent 1 of their -projection into or through the nailing-die will vary.Means has heretofore been furnished for effecting such an adjustment, asbya wedge interposed the actuating memberand the plate carrying thedrivers and movable and retained in its adjusted position by a screw.This,'while accomplishing the desired end, is a comparatively slow andtroublesome proceeding, and it is an object of the present invention toeffect the adjustment'of the drivers speedily and with little effort onthepart of the operator.

In theattainment of the above object, I combine with such areciprocatory driver-actuating member as the crosshead of aheel-attaching machine or other fastening-inserting apparatus and aplurality of drivers mounted upon'such member, anadjusting member,movable through direct engagement by the operator, and a member en- 40gaging the adjusting member and also movable by the operator. By thisdirect movement of the adjusting member, the projection of the driversfrom the actuating member into the c'o-operating die may be changedrapidly, until their relation 46 is'approximately correct, while by amore gradual movement of the second member, the final adjustment may bemade to the slight additional extent required to give the exact locationof the driver-ends sought; The adjusting member may 50 be moved andlocked for the first adjustment and then moved independently of thecondition of the lock for the second adjustment. Morespecifically, theadjusting member is formed in relatively movable portions, onebemgherein shown as the form of .awedge'movable-upon the crosshead,

and upon which the plate carrying the drivers rests, while the otherportion consists of a toothed slide movable upon the wedge. The twoportions by a screw threaded into said wedge and engaging the lockedslide, a fine and accurate adjustment may quickly be made. The extent ofthese ad- 10 justments may be determined by indicating means, as by ascale carried by the wedge and visible outside the driver-plate.

In the accompanying drawing,

Fig. 1 shows in perspective a particular embodil ment of my invention,applied to amachine for attaching rubber lifts to heels;

Fig. 2 is a broken plan view of the driver-plate and more-closelyassociated elements; A

Fig. 3, a full vertical section on the line III-III-"20 of Fig. 2;

' "Fig. 4, a sectional detail corresponding to Fig. 3 I but showing thelocking member released, while in of Letters Patent of the United StatesNo.

1,365,802, Standish, January 18, 1921. Mounted for verticalreciprocation in the frame ID of the -machine is an upper crosshead l2and a lower crosshead l4. The former crosshead is carried and guided byrods l6, and the latter by a spindle I8and sleeves 20 surrounding therods. In the crosshead I2 is mounted a nailing-die 22, with which isassociated the liftor heel-holder 24 of the previously mentioned patent,this being movable into and out of operating position above the dieunder the control of the usual loader-arm 26. Upward movement of thecrosshead l2 serves to-4o force a lift in the holder 24 against aheel-base attached to a shoe supported upon a jack, this jack not beingincluded in the drawing. Movable v in passages 28 in the die arenail-drivers 30, these being assembled in a group upon a plate 32. The45 plate with its drivers is reciprocated by the cross- "head I4 tocause the insertion in the work of nails resting upon the upper ends ofthe drivers.

in this position to meet the requirements ofdifferent reinforcements inthe lifts, orothe'r work- .5

- gages a pin 58 bridging the slot 54.

conditions, is obtained in the following manner. The driver-plate 32 isreceived in ways 34, 34 formed at opposite sides of an adjusting Wedgeor slide 36, said plate resting upon a horizontal surface 38 of thewedge between the ways. The lower, upwardly and rearwardly inclinedsurface 40 of the wedge is carried upon a similarly inclined surface d2of the crosshead l4. As the wedge is thrust rearwardly or drawnforwardly, its movement up or down the inclined surface 42 will causethe driver-assembly to be correspondingly raised or lowered. Theadjustment thus obtained is releasably held by a detent 44 rising from aplunger 46 movable vertically in a bore in the crosshead M beneath thewedge-slide. The detent may enter between any two of a series ofinclined teeth 58 carried by the wedge, said detent being forced up byexpansion-springs 5B, 55 beneath it. If the drivers are to be raised,the inclination of the rear faces of the teeth, which is toward thefront of the machine, allows the movement of the wedge to be madewithout a special act on the part of the operator'to release the detent.This is because the complemental inclination of the forward face of thedetent will cause it to be camrned down by the pressure of the teeth. Ifthe drivers are to be lowered, the wedge is freed from the lock appliedby the detent, through the action of a plunger 52, movable in ahorizontal bore in the rear of the crosshead. The forward extremity ofthe plunger is reduced laterally to enter a slot 54 at the bottom of thedetent-plunger it; Upon the lower edge of this reduced portion is acam-incline 56 which en- Normally, the plunger 52 is urged rearwardly byan expansion-spring 6t, surrounding it outside the crosshead, this beingto an extent permitted by the engagement of its hooked forward end 62with the pin 53. This leaves the detent free to assume its lockingposition. When the operator wishes to lower the drivers, he presses inthe plunger 52, so its edge 56 depresses the detent. Thereupon, thereleased wedge may be drawn forward. Just after the detent id has beenwithdrawn from the teeth 48 by the cam, the forward end of the body ofthe plunger 52 contacts with the plunger 36, preventing excessivereleasing movement of the former plunger. The travel of the wedge inboth directions may be limited by screws 63, 53, threaded oppositelyinto the ends of said Wedge, with their heads projecting over theadjacent edges of the crosshead M.

The movement of the wedge just described gives a very rapid adjustment,but with this alone, it might be difiicult to locate the drivers at theexact height desired. An additional fine adjustment is thereforefurnished. The locking teeth 48 are formed not as an integral part ofthe sliding wedge 36 but on a secondary sliding portion H, which ismovable upon the wedge. The under side of the wedge is slotted at fifito receive the slide 64, and the two sliding elements are connected by ascrew 68 threaded into the wedge and having near its forward extremity acircumferential flange ill entering a transverse groove 12 in the slide64. When the screw 68 is rotated by a head or finger-piece 14, the wedgemay be moved in or out, while the slide 64 remains locked to thecrosshead by the detent 44. By this means, there may readily be obtaineda precise final adjustment, if that given by the movement of thecompound slide 38, 84 was not correct. The screw 68 may be retained inthe position to which it has been turned, by a spring-detent 16 attachedto the under side of the slide 64 and entering any one of a series ofdepressions 18 formed about the periphery of the flange 10.

To relieve the operator of the necessity for making measurements of thelocation of the upper ends of the drivers, indicating means is provided.This is shown as a scale 80 lying in a depression in the upper face ofthe wedge 36 near one side and having inscribed upon its upper surfacegraduations 82, which may correspond to lifts or heels of differentcharacters. These graduations may be referred to some index-line, asthat furnished by the forward edge 84 of the driver-plate 32. Eachnumbered graduation may correspond to driver-adjustments ofone-thirtysecond of an inch, and also to the successive steps of thecoarse adjustments furnished by the teeth 48. The intermediateunnumbered graduations may represent variations of one-sixty-fourth ofan inch, attained by rotation of the screw 68. To furnish a preliminaryadjustment of the scale with respect to its index-line, the former isshown as variable in position upon the wedge by a slotand-screwconnection 86.

An example of the Work in connection with which the present invention isof especial utility is illustrated in Fig. 5 of the drawing. Here, aheel-base H has been attached to a shoe, and to this a rubber lift L hasbeen secured by nails, one of which appears at N, these nails havingtheir heads driven into full engagement with washers W molded into thelift. By the adjustments of the driver-assembly hereinbefore described,the relation of the nail-heads to the washers may be accuratelyestablished for this or similar work, with the expenditure of a minimumof time and effort by the operator.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is:

1. In a fastening-inserting machine, a reciprocatory actuating member, aplurality of fastening-drivers mounted upon the actuating member, anadjusting member movable through direct engagement by the operator toeffect a relatively rapid change in the projection of the drivers fromthe actuating member, and a member engaging the adjusting member andmovable by the operator to effect a more gradual change in theprojection of the drivers.

2. In a fastening-inserting machine, a reciprocatory actuating member, aplurality of fastening-drivers mounted upon the actuating member, anadjusting member movable upon the actuating member to vary theprojection of the drivers therefrom, means for locking theadjustingmember upon the actuating member or for releasing it formovement, and means acting independently of the condition of the lockingmeans for moving the adjusting member.

3. In a fastening-inserting machine, a reciprocatory actuating member, aplurality of fastening-drivers mounted upon the actuating member, anadjusting member movable upon the actuating member to vary theprojection of the drivers therefrom, said adjusting member havingrelatively movable portions, means for releasably locking one of theportions of the adjusting member to the actuating member, and meansarranged to move portions of the adjusting memberrelatively to eachother.

4. In a fastening-inserting machine, a reciprocatory actuating member, aplurality of fastening-drivers mounted upon the actuating member,

an adjusting membermovable upon the actuating member to vary theprojection of the drivers therefrom, said adjusting member havingrelatively movable portions, means for releasably locking one of theportions of the adjusting member to the actuating member, means arrangedto move portions of the adjusting member relatively to each other, andindicating means by which the extent of movement of the adjusting meansfor work of difierent characters may be determined.

5. In a heel-attaching machine, a nailing-die, drivers movable therein,a plate upon which the drivers are mounted, a reciprocatory crossheadcarrying the plate, an adjusting member interposed between the crossheadand the plate and having relatively movable portions, said adjustingmember being arranged for movement of its portions together by theoperator to effect a comparatively rapid change in the projection of thedrivers into the die, and means arranged to produce the relativemovement of the portions of the member to change more gradually theprojection of the drivers into the die. i

6. In a heel-attaching machine, a nailing-die, drivers movable therein,a plate upon which the drivers are mounted, a reciprocatory crossheadcarrying the plate, a driver-adjusting member interposed between thecrosshead and the plate,

said adjusting member having two portions, means for releasably lockingone of the portions to the crosshead, and means arranged to producerelative movement between said portions.

'7. In a heel-attaching machine, a reciprocatory crosshead, adriver-plate carried thereby, an adjusting slide movable upon thecrosshead and upon which the driver-plate rests, a locking slide movableupon the adjusting slide, a movable locking member connecting thelocking slide to the crosshead, and means arranged to produce relativemovement between the slides.

8. In a heel-attaching machine, a reciprocatory crosshead, adriver-plate carried thereby, an adjusting slide movable upon thecrosshead and upon which the driver-plate rests, a locking slide movableupon the adjusting slide, a movable locking member connecting thelocking slide to the crosshead, means movable upon the crosshead forreleasing the lock, and means arranged to produce relative movementbetween the slides.

9. In a heel-attaching machine, a reciprocatory crosshead, adriver-plate carried thereby, a wedge-slide movable upon the crossheadand upon which the driver-plate rests, a toothed slide movable upon thewedge, a detent movable upon the crosshead and engaging the teeth of theslide, and a screw threaded into one of the slides and engaging theother.

10. In a heel-attaching machine, a reciprocatory crosshead, adriver-plate carried thereby, a wedge-slide movable upon the crossheadand upon which the driver-plate rests, a scale carried by the wedge andbeing visible outside the driver-slide, a toothed slide movable upon thewedge, a detent movable upon the crosshead and engaging the teeth of theslide, and a screw threaded into one of the slides and engaging theother.

11. In a heel-attaching machine, a reciprocatory crosshead, adriver-plate carried thereby, a wedge-slide movable upon the cross headand upon which the driver-plate rests, a toothed slide movable upon thewedge, a spring-actuated detent movable upon the crosshead and engagingthe teeth of the slide, a releasing member movable upon the cross headand provided with a cam-surface acting upon the detent, and means actingupon the slides to move them relatively to each other.

12. In a heel-attaching machine, a reciprocatory crosshead, a driverplate carried thereby, a wedge-slide movable upon the crosshead and uponwhich the driver-plate rests, a toothed slide movable upon the wedge, adetent movable upon the crosshead and engaging the teeth of the slide, aspring-actuated plunger movable upon the crosshead, said plunger havinga portion acting upon the detent to retain the two in co-operation and aportion acting upon the detent to separate it from the teeth, and ascrew threaded into one of the slides and engaging the other.

JOHN A. DURAN.

